219
FXUS01 KWBC 301936
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
335 PM EDT FRI MAY 30 2025
VALID 00Z SAT MAY 31 2025 - 00Z MON JUN 02 2025
...A STRENGTHENING LOW PRESSURE SYSTEM WILL BRING MODERATE TO
HEAVY RAIN AND GUSTY WINDS FROM THE OHIO VALLEY TO THE
MID-ATLANTIC STATES THIS EVENING INTO TONIGHT, THEN TO NEW ENGLAND
AND THE INTERIOR NORTHEAST ON SATURDAY...
...SEVERE THUNDERSTORMS LIKELY THIS EVENING FOR PARTS OF THE
MID-ATLANTIC AND THE SOUTHEAST...
...SIGNIFICANT HEAT EXPECTED ACROSS INTERIOR CALIFORNIA AND
PORTIONS OF THE SOUTHWEST THROUGH SATURDAY...
A STRENGTHENING LOW PRESSURE SYSTEM WILL TRACK ACROSS THE NORTHERN
MID-ATLANTIC THROUGH THE EVENING AND OVERNIGHT HOURS, REACHING NEW
ENGLAND AND THE INTERIOR NORTHEAST BY SATURDAY. A COMPLEX OF
THUNDERSTORMS WITH MODERATE TO HEAVY RAIN ALONG WITH INCREASINGLY
GUSTY WINDS CAN BE EXPECTED ALONG THE TRACK OF THIS STORM SYSTEM.
THE HIGHEST CHANCE OF HEAVY RAIN WILL BE ACROSS THE OHIO VALLEY
THIS AFTERNOON AN EVENING AND THEN INTO THE NORTHERN MID-ATLANTIC
BY TONIGHT. SOME THUNDERSTORMS WILL ALSO HAVE THE POTENTIAL TO
BECOME STRONG TO SEVERE, POSSIBLY RESULTING IN DAMAGING WINDS,
HAIL, ISOLATED TORNADOES, AND SCATTERED INSTANCES OF FLASH
FLOODING. THE SEVERE THUNDERSTORM POTENTIAL ALSO EXTENDS SOUTHWARD
INTO PORTIONS OF THE SOUTHERN MID-ATLANTIC AND THE SOUTHEAST,
PARTICULARLY ACROSS THE CAROLINAS AND PARTS OF EASTERN GEORGIA.
THE LOW IS FORECAST TO DEEPEN FURTHER AS THE CENTER TRACKS
NORTHEASTWARD THROUGH NEW ENGLAND ON SATURDAY WITH A SWATH OF
MODERATE TO HEAVY RAIN ACROSS THE INTERIOR ALONG WITH GUSTY WINDS
EXPANDING ACROSS THE NORTHEAST. WHILE THE INITIAL COLD FRONT WILL
BE WELL OFF THE EAST COAST BY SATURDAY, THE INSTABILITY ASSOCIATED
WITH A COLD UPPER-LEVEL TROUGH COULD TRIGGER ADDITIONAL SCATTERED
THUNDERSTORMS ACROSS THE MID-ATLANTIC REGION SATURDAY AFTERNOON,
EVEN THOUGH TEMPERATURES WILL BE COOLER IN THE WAKE OF THE FRONT.
SATURDAY NIGHT INTO SUNDAY MORNING, A REINFORCING COLD FRONT WILL
BRING ANOMALOUSLY COOL TEMPERATURES FROM THE GREAT LAKES THROUGH
THE NORTHEAST AND DOWN INTO THE MID-ATLANTIC, SETTING UP A FAIRLY
PLEASANT SUNDAY TO ROUND OUT THE WEEKEND.
MEANWHILE, IN CONTRAST TO THE RAIN AND COOLING TREND IN THE
EASTERN U.S., A STRONG RIDGE OF HIGH PRESSURE WILL BRING HEAT AND
PERSISTENT DRY WEATHER ACROSS MUCH OF THE WESTERN U.S. AND INTO
THE NORTHERN PLAINS. IN FACT, RECORD HIGH TEMPERATURES WILL BE
THREATENED ACROSS INTERIOR NORTHERN CALIFORNIA THIS AFTERNOON,
EXPANDING INTO THE GREAT BASIN, IDAHO, AND AS FAR NORTH AS WESTERN
MONTANA ON SATURDAY. THE ANTICIPATED DANGEROUS HEAT IN THE
SOUTHWEST FOR THE NEXT COUPLE OF DAYS HAS LED TO THE ISSUANCE OF
EXTREME HEAT WARNINGS FOR PORTIONS OF SOUTHERNMOST NEVADA,
SOUTHEAST CALIFORNIA, AND NORTHWESTERN MOST ARIZONA. DRINKING
PLENTY OF WATER, WEARING LIGHT COLORED CLOTHING, AND STAYING IN
AIR CONDITIONED AREAS IS ADVISED AS TEMPERATURES SOAR AS HIGH AS
THE MID-110S FAHRENHEIT IN LOWER DESERT LOCATIONS LIKE DEATH
VALLEY, CALIFORNIA. A COLD FRONT FROM THE PACIFIC IS FORECAST TO
BRING RAPID COOLING INTO THE PACIFIC NORTHWEST LATER SATURDAY INTO
SUNDAY BUT WITH MINIMAL RAINFALL EXPECTED. FARTHER SOUTH AND EAST,
SURGING MOISTURE AHEAD OF THE FRONT ACROSS PARTS OF THE ROCKIES
AND INTERMOUNTAIN WEST WILL SUPPORT HIGH ELEVATION SHOWERS AND
THUNDERSTORMS SUNDAY AFTERNOON AND EVENING. GIVEN THE ENHANCED
MOISTURE BEING DRAWN IN, SOME OF THESE SHOWERS AND STORMS COULD
PRODUCE BRIEFLY HEAVY DOWNPOURS.
MILLER/KONG
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